Word: grade
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...same Berlin broadcast that told of the fall of Bengasi last week carried another piece of news. For his work in Libya, Adolf Hitler had upped tough Tank Expert General Erwin Rommel to the grade of Field Marshal, Second Class...
Electrolysis, rather than smelting, for extracting iron from its ores is being developed by the Ford Motor Co. Reason: conventional smelting is not economical in the U.S. for ores which assay less than 40%, and Ford owns great deposits of low-grade (20-30%) ores near unused water power in Upper Michigan...
Thomas Edison once tried magnetic concentration of low-grade iron ore, as Henry Ford discovered in the records of Edison's Menlo Park Laboratory while rebuilding it in his Greenfield Village. So Ford gave this line of research in 1929 as a first assignment to Robert Boyer, who worked off & on at it while developing his famed plastic auto body (TIME...
...many attempted methods of using low-grade ore simple electrolysis proved best. Ore is dissolved in hydrochloric acid; the iron oxide dissolves to become ferric chloride; and when an electric current passes through the solution, the positively charged iron atoms migrate to the negative electrode. Advantage of electrolytic iron over smelted iron...
...takes at least three months to teach an individual the basic subjects every soldier must know, regardless of his grade and arm of service, and at least three months to then teach the same individual the fundamental duties of a commissioned officer...